<template>
  <el-date-picker
      style="width: 100%;"
      :type="type"
      v-bind="$attrs"
      v-model="state.paramVal"
      clearable
      :placeholder="((typeof $attrs.disabled !== 'undefined' && $attrs.disabled !== false) || state.formView) ? '' : ($attrs.placeholder ? $attrs.placeholder : `请选择${label}`)"
      :valueFormat="valueFormatCpt"
      :format="formatCpt"
      unlink-panels
      :disabled="isValue($attrs.disabled) ? $attrs.disabled : state.formView"
  >
    <template #default="cell">
      <slot name="default" :cell="cell"></slot>
    </template>
  </el-date-picker>
</template>

<script setup lang="ts">
import {
  computed,
  reactive,
  watch,
  inject
} from 'vue'
import {isValue} from "@/utils/czr-util";
const emit = defineEmits(['emitParam'])
const props = defineProps({
  param: {},
  label: {},
  type: {
    type: String,
    default: 'date',
    validator(val: string) {
      return ['date', 'year', 'week', 'month', 'dates', 'monthrange', 'daterange'].includes(val)
    }
  },
  valueFormat: { type: [String, Boolean], default: false},
  format: { type: String, default: ''},
})
const state = reactive({
  paramVal: props.param,
  formView: inject('form-view', false),
})
watch(() => state.paramVal, (n) => {
  emit('emitParam', n)
})
watch(() => props.param, (n) => {
  state.paramVal = n
})
const formatCpt = computed(() => {
  let val = props.format
  if (!val && val !== undefined) {
    switch (props.type) {
      case 'year':
        val = 'YYYY'
        break;
      case 'month':
        val = 'YYYY-MM'
        break;
      case 'week':
        val = '[第]ww[周]'
        break;
      default:
        val = 'YYYY-MM-DD'
    }
  }
  return val
})
const valueFormatCpt = computed(() => {
  let val = props.valueFormat
  if (val === false) {
    switch (props.type) {
      case 'year':
        val = 'YYYY'
        break;
      case 'month':
        val = 'YYYY-MM'
        break;
      case 'week':
        val = ''
        break;
      default:
        val = 'YYYY-MM-DD'
    }
  }
  return val
})
</script>

<style scoped lang="scss">
</style>
